[RFC/PATCH 0/3] limit the size of the packs we receive

In https://public-inbox.org/git/20150612182045.GA23698%40peff.net/, Peff sent a patch that is used by GitHub to abort `git receive-pack` when the size of the pack we receive is bigger than a configured limit.

GitLab is interested in using the same approach and in standardizing the error messages the user could get back.

So I rebased Peff's patch to the current master, refreshed it a bit, split it, and added the missing --max-input-size=<size> option to `git unpack-objects` - to make it work for all `transfer.unpacklimit` values - in a new patch.

There is no documentation yet for the `--max-input-size=<size>` options added to `git index-pack` and `git unpack-objects`, nor for the new `receive.maxsize` config option.

I kept Peff as the author of the patches that are made mostly from his patch, but I added my Signed-off-by to them.

Christian Couder (1):
  unpack-objects: add --max-input-size=<size> option

Jeff King (2):
  index-pack: add --max-input-size=<size> option
  receive-pack: allow a maximum input size to be specified

 builtin/index-pack.c     |  5 +++++
 builtin/receive-pack.c   | 12 ++++++++++++
 builtin/unpack-objects.c |  7 +++++++
 t/t5546-push-limits.sh   | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 71 insertions(+)
 create mode 100755 t/t5546-push-limits.sh